Frederik Mayer
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View article: Deconstructing 3D Structured Materials by Modern Ultramicrotomy for Multimodal Imaging and Volume Analysis across Length Scales
Deconstructing 3D Structured Materials by Modern Ultramicrotomy for Multimodal Imaging and Volume Analysis across Length Scales Open
Based on the rapid advances in additive manufacturing, micro‐patterned heterostructures of soft materials have become available that need to be characterized down to the nanoscale. Advanced function‐structure relationships are designed by …
View article: Titelei/Inhaltsverzeichnis
Titelei/Inhaltsverzeichnis Open
View article: Towards <i>in-situ</i> diagnostics of multi-photon 3D laser printing using optical coherence tomography
Towards <i>in-situ</i> diagnostics of multi-photon 3D laser printing using optical coherence tomography Open
In recent years, multi-photon 3D laser printing has become a widely used tool for the fabrication of micro- and nanostructures for a large variety of applications. Typically, thorough sample characterisation is key for an efficient optimis…
View article: Comparison of segmentation algorithms for FIB/SEM tomography of porous polymers: Importance of image contrast for machine learning segmentation
Comparison of segmentation algorithms for FIB/SEM tomography of porous polymers: Importance of image contrast for machine learning segmentation Open
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View article: A comprehensive KPI network for the performance measurement and management in global production networks
A comprehensive KPI network for the performance measurement and management in global production networks Open
View article: 3D printing of inherently nanoporous polymers via polymerization-induced phase separation
3D printing of inherently nanoporous polymers via polymerization-induced phase separation Open
3D printing offers enormous flexibility in fabrication of polymer objects with complex geometries. However, it is not suitable for fabricating large polymer structures with geometrical features at the sub-micrometer scale. Porous structure…
View article: Multi-material multi-photon 3D laser micro- and nanoprinting
Multi-material multi-photon 3D laser micro- and nanoprinting Open
Three-dimensional (3D) laser micro- and nanoprinting based upon multi-photon absorption has made its way from early scientific discovery to industrial manufacturing processes, e.g., for advanced microoptical components. However, so far, mo…
View article: 3D Two‐Photon Microprinting of Nanoporous Architectures
3D Two‐Photon Microprinting of Nanoporous Architectures Open
A photoresist system for 3D two‐photon microprinting is presented, which enables the printing of inherently nanoporous structures with mean pore sizes around 50 nm by means of self‐organization on the nanoscale. A phase separation between …
View article: On the Schwarzschild Effect in 3D Two‐Photon Laser Lithography
On the Schwarzschild Effect in 3D Two‐Photon Laser Lithography Open
The two‐photon Schwarzschild effect in photoresists suitable for 3D laser lithography is revisited. The study ranges over seven orders of magnitude in exposure time (from 1 µs to 10 s) and investigates a wide variety of different photoresi…
View article: Multimaterial 3D laser microprinting using an integrated microfluidic system
Multimaterial 3D laser microprinting using an integrated microfluidic system Open
An instrument brings 3D laser printing to a new level, exemplified by 3D fluorescent microstructures composed of five materials.
View article: On the limits of laminates in diffusive optics
On the limits of laminates in diffusive optics Open
Laminate metamaterials lead to anisotropic material properties, which can be tailored by the contrast between the two ingredient materials within the laminate. Such tailored anisotropies are, for example, required to realize advanced invis…
View article: Experiments on Metamaterials with Negative Effective Static Compressibility
Experiments on Metamaterials with Negative Effective Static Compressibility Open
The volume of ordinary materials decreases in response to a pressure increase exerted by a surrounding gas or liquid, i.e., the material volume compressibility is positive. Recently, poroelastic metamaterial architectures have been suggest…
View article: Hightech-Waffe im Kampf gegen Produktpiraterie - dreidimensionaler Mikrodruck soll Produkte fälschungssicher machen - Campusreport am 05.12.2017
Hightech-Waffe im Kampf gegen Produktpiraterie - dreidimensionaler Mikrodruck soll Produkte fälschungssicher machen - Campusreport am 05.12.2017 Open
Gefakte Armbanduhren, gefakte Medikamente, gefakte Ersatzteile fürs Auto: inzwischen gibt es perfekte Kopien von so gut wie allem, was gut und teuer ist. Auf eine Viertelmilliarde Dollar weltweit werden die Schäden durch Produktpiraterie g…
View article: Cloaking Contacts on Large‐Area Organic Light‐Emitting Diodes
Cloaking Contacts on Large‐Area Organic Light‐Emitting Diodes Open
Metallic contact grids on top of large‐area organic light‐emitting diodes (OLEDs) are important for laterally homogenized current spreading leading to a lower series resistance and reduced large‐scale brightness gradients. However, the con…